Radeon HD 7770 and Radeon R7 (Kaveri) - video card comparison
Radeon HD 7770
Radeon R7 (Kaveri)
Architecture
GCN (2011−2017)
GCN 1.1 (2014)
GPU code name
Cape Verde
Kaveri
Market segment
Desktop
Laptop
Release date
February 2012
June 2014
Interface
PCIe 3.0 x16
-
Supplementary power connectors
1x 6-pin
-
Boost clock speed
-
686 MHz
Core clock speed
1000 MHz
553 MHz
Manufacturing process technology
28 nm
28 nm
Number of transistors
1,500 million
2410 Million
Pipelines / CUDA cores
640
512
Power consumption (TDP)
80 Watt
-
Texture fill rate
40.00
-
Memory type
GDDR5
-
Maximum RAM amount
2 GB
-
Memory bus width
128 Bit
64/128 Bit
Memory clock speed
4500 MHz
-
Memory bandwidth
72 GB/s
-
Shared memory
-
+
Display Connectors
1x DVI, 1x HDMI, 2x mini-DisplayPort
-
Eyefinity
+
-
HDMI
+
-
DirectX
12 (11_1)
12 (FL 12_0)
OpenCL
1.2
-
OpenGL
4.6
-
Shader Model
5.1
-
Vulkan
1.2.131
-